Solve the system of equations.

13x+2y=1

5x-2y=-19

A scientist has 350 mg of a radioactive material. The material will cut in half every month. After how many months will there be. 68mg left?

A regular decagon is mapped onto itself every time it is rotated

How to you find the acsess of symmetry in a equation ex Y=a (x-h) = k

Abby is infected by a certain fungal infection. When she goes to the doctor, the population fungus is 4 million. The doctor prescribes an anti-fungal that reduces the fungus population to of its size each 5 day.

Select two ratios that are equivalent to 4:18. Choose 2 answers: (Choice A) 1:3 (Choice B) 2:9 (Choice C) 18:4 (Choice D) 10:80 (Choice E) 8:36

93*10 of 6th power whole number

1) What is 61% of 7.2?

Equation for 52 is what percent of 260

How much helium to lift 1pound

What is the value of 11x11x11